A General Metal-Assisted Synthesis of α-Halo Oxime Ethers from Nitronates and Nitro Compounds
作者:Alexey Yu. Sukhorukov、Maria A. Kapatsyna、Tammy Lim Ting Yi、Hyeong Ryool Park、Yana A. Naumovich、Petr A. Zhmurov、Yulia A. Khomutova、Sema L. Ioffe、Vladimir A. Tartakovsky
DOI:10.1002/ejoc.201403083
日期:2014.12
α-halo oxime ethers from readily accessible nitronates and nitro compounds via bis(oxy)enamines is reported. A key step of the strategy involves the unprecedented reaction of bis(oxy)enamines with a metal (Co, Zn, Mg, Mn) halide that acts as both a promoter and halide (Br, I, Cl) source. A variety of cyclic and acyclic ethers of α-halo oximes, including previously unavailable trimethylsilyl ethers of α-iodo
报道了一种通过双(氧)烯胺从容易获得的硝基化合物和硝基化合物合成 α-卤代肟醚的方法。该策略的一个关键步骤涉及双(氧)烯胺与金属(Co、Zn、Mg、Mn)卤化物的前所未有的反应,该卤化物既作为促进剂又作为卤化物(Br、I、Cl)源。各种 α-卤代肟的环状和非环状醚,包括以前无法获得的 α-碘肟的三甲基甲硅烷基醚,已经以良好到高的产率合成。